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7nadin3 [17]
3 years ago
7

What is the work done in lifting 60 kg of blocks to a height of 20 m

Chemistry
1 answer:
balandron [24]3 years ago
8 0

Answer:

<h2>1200 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 60 × 20

We have the final answer as

<h3>1200 J</h3>

Hope this helps you

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A 17.6-g sample of ammonium carbonate contains ________ mol of ammonium ions.
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These problems are a bit interesting. :)

First let's write the molecular formula for ammonium carbonate. 

NH4CO3 (Note! The 4 and 3 are subscripts, and not coefficients)

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Now to convert to mol of one of our substances we take the percent composition of that particular part of the molecule and multiply it by our starting mass. This is what it looks like using dimensional analyse. 

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